This little portable fans are a great deal for the price. After spending 25 years in the computer business, I am aware that heat and dirt are probably the biggest factor in killing computers. This fan will not do a thing about dirt but it does help to keep a laptop cool. That is a major factor in extending the life of a laptop at $5.69 on Amazon, you really should grab one and extend the life of your laptop.
If reviewing a product, it may have been received free of charge. That will NEVER have a bearing on my recommendations.